Stropping-machine.



J. 'LQRENZEN- .sTRoPPING MAQHINE. APPLICATION Him @11.19, 190s. v A 943,31 '1.- Patented Deo. 14,1909.

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\ JEANS ORENZEN, OF FREMONT,

OHIO.

STROPPING-MACHINE.

Specification of potters Patent. Patented Deel:o 14. 1909 appiican'on inea January 19, 190e.' seriaifnq. 296,738.

To all whom it may concern:

Be it known that l, dans LORENZEN, a citizen of the United States, residing at Fremont, in the county of Sandusky, State of Chio, have invented certain new and useful Improvements in Stropping-Machines; and 1 do declare the following tb-be a full, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the saine, reference being had to'theaccompanyfigures of reference marked thereon, which form a part of this specification.`

This invention relates to a stropping machine, especially designed 5 for stropping razor blades, and consists in the construction quickly and arrangement of parts hereinafter fully set forth andpointed out particularly in the claim.

The object of the invention is to provide a simple inexpensive and efficient machine, wherein the razor may be perfectly and stropped by a manipulation of the strop, which causes the razor blade Yto alternately swing from side to side into contact with the moving strop, as itis drawn longiti'idinally through the machine in opposite directions Vin reciprocal succession.

The above object is attained by the mechl anism illustrated -in ythe accompanying drawtudinally, is a roller 3 over which pass, said strop describing a loop around said roller, the portions of theK Figure 1 isa perspective View of a stropping machine embodying my invention, showing a razor in position therein for stropping, the handle of the razor being broken away. Fig. Z is an end elevation ot' the device, the ends of the strop being broken away as well as a portion ofthe guard which crosses the connectingr link at the end of the case. Fig. 3 is a central, transverse section as on line"33 of'liig. 1. Fig. 4 is a central, vertical section as on line 4-4 of Fig. 3. l

Referringto the characters of reference, 1 designates a metallic case having parallel sides connected by the opposed ends 2, allI of which parts are preferably formed in-y tegral. Journaled in the ends of the case near the Atop.thereof and extendin longite strop 4 is adapted to strop within the casel lying parallel with and adjacent to the sides thereof, and the ends of the strop extending from vthe opening in the bottom of the case, as clearly shown in Fig. 3. The strop is of sufficient length to enable it to be drawn longitudinally forthvl and back through the case in reciprocal suc-U cession, by grasping the terminal portions 5 and successivelydrawing thereon.

Journaled between the ends'of the case lnear the bottom thereof, and lying between the op'posed portions of the strop within the case is a ro'ller 6 which keeps the end porfA tions of the strop separatedj and causes therili; lto draw through the case parallel with sides.' I

Journaled in the ends of the case and extendinglongitudinally thereof a short distance below the upper roller 3, is a rock shaft 7 Fixed to said rock shaft is a clip 8 having the opposed spring jaws 9 adapted to embrace the back of a razor blade 10. Upon the outer end of the rock shaft 7 is a crank arm 11. Upon the outer end of the roller 3 is a crank arm l2 which stands in a direction opposite to crank arm l1. Pivoted at its opposite ends Vto the ends of said crank arms is a connecting link 13. By causing the crank arms to standA in opposite directionsA and connecting their outer ends by. means of the link'13, a. partial rotary movement of the roller 3 in either direction will impart a corresponding movement' to the rock shaft 7 in the opposite direction. Secured to the case and embracing the cohnecting-link 13 is a guard 14. p

`With the bladeof a razor in position between tlie spring jaws 9, as shown, a longitndinal reciprocation of thestrop will cause a partial rotation of the roller 3 in opposite directions, thereby imparting a rocking motion tothe shaft 7 through the medium of the connecting link 13, causing the edge of the razor to swing from side to side into contact with the strop'in reciprocal succession accordingly as the direction of movement of the strop is reversed, the arrangement being such as to cause the edge of the blade to swing into contact with that portion of the strop which'is being drawn outwardly from the case and away from that. portion which is passing into the case, thereby obviating liability of cuttingA the strop and causing the blade to instantly shift when the direction of movement of the strop is reversed.

Attached to the ends of the case is a bail 15 having an eye 16 therein adapted to 'f engaged by a hook, whereby the case may ''J held While the strop is being drawn therethrough in the operation of honing.

By varying the tension on the strop, the pressure of the blade against the strop as it 1s being drawn through the case, may be varied at pleasure.

This stropping machine is adaptable for stropping razors of the ordinary type and for stropping safety razor blades.

Having thus fully set forth my invention, what l'. claini as ne1 and desire to seeure by Letters Patent is X A blade stropping device coxnprisingan inelosing case having straight parallel sides, a lroller journaled between said sides vat the top vof the case7 a similar rolleizjournaled be-4 tween said sides at the bottom of the case, 'said rollers being disposed Within the case an equal distance from the sides thereof, av

` strop looped through the case over the upper roller in a manner to cause the opposed portionsthereof Within the case Ato lie in parallel relation contiguous to said straight sides and Journaled in the case between the upper andl lower rollers equidistant from said sides, said blade-holder being adapted to swing to carry the-blade rorn side to side into Contact with thessides of the strop lying against the straight side Walls of the case,.and means connecting said blade-holder with the upper roller` to elieot a movement of the holder by the rotation of the roller as the strop is drawn thereover. Iny testimony whereof,` I sign this specilication inthe presence of two witnesses.

CLARENCE A. THULL, CARRAH KNAUSE. 

